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pgsql: pg_walsummary: Improve stability of test checking statistics
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* pgsql: pg_walsummary: Improve stability of test checking statistics
@ 2025-07-08 04:49  Michael Paquier <michael@paquier.xyz>
  0 siblings, 0 replies; 2+ messages in thread

From: Michael Paquier @ 2025-07-08 04:49 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

pg_walsummary: Improve stability of test checking statistics

Per buildfarm member culicidae, the query checking for stats reported by
the WAL summarizer related to WAL reads is proving to be unstable.

Instead of a one-time query, this commit replaces the logic with a
polling query checking for the WAL read stats, making the test more
reliable on machines that could be slow with the stats reports.

This test has been introduced in f4694e0f35b2, so backpatch down to v18.

Reported-by: Alexander Lakhin <exclusion@gmail.com>
Reviewed-by: Alexander Lakhin <exclusion@gmail.com>
Discussion: https://postgr.es/m/f35ba3db-fca7-4693-bc35-6db64488e4b1@gmail.com
Backpatch-through: 18

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/a27893df45ec5d8c657899202e9cf0b9a816fe2f

Modified Files
--------------
src/bin/pg_walsummary/t/002_blocks.pl | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)



^ permalink  raw  reply  [nested|flat] 2+ messages in thread

* pgsql: pg_walsummary: Improve stability of test checking statistics
@ 2025-07-08 04:49  Michael Paquier <michael@paquier.xyz>
  0 siblings, 0 replies; 2+ messages in thread

From: Michael Paquier @ 2025-07-08 04:49 UTC (permalink / raw)
  To: pgsql-committers@lists.postgresql.org

pg_walsummary: Improve stability of test checking statistics

Per buildfarm member culicidae, the query checking for stats reported by
the WAL summarizer related to WAL reads is proving to be unstable.

Instead of a one-time query, this commit replaces the logic with a
polling query checking for the WAL read stats, making the test more
reliable on machines that could be slow with the stats reports.

This test has been introduced in f4694e0f35b2, so backpatch down to v18.

Reported-by: Alexander Lakhin <exclusion@gmail.com>
Reviewed-by: Alexander Lakhin <exclusion@gmail.com>
Discussion: https://postgr.es/m/f35ba3db-fca7-4693-bc35-6db64488e4b1@gmail.com
Backpatch-through: 18

Branch
------
REL_18_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/330db576f8c37479d472c3e9b0eb6d47ba1d97f4

Modified Files
--------------
src/bin/pg_walsummary/t/002_blocks.pl | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)



^ permalink  raw  reply  [nested|flat] 2+ messages in thread


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